///\todo upgrade

//////////////////////////////////////////////////////////////////////////////////
//                                                                              //
//  This file is part of the buola project (https://code.google.com/p/buola/).  //
//                                                                              //
//  Copyright(c) 2007-2012 Xavi Gratal                                          //
//  gratal AT gmail DOT com                                                     //
//                                                                              //
//  Buola is free software: you can redistribute it and/or modify               //
//  it under the terms of the GNU General Public License as published by        //
//  the Free Software Foundation, either version 3 of the License, or           //
//  (at your option) any later version.                                         //
//                                                                              //
//  Buola is distributed in the hope that it will be useful,                    //
//  but WITHOUT ANY WARRANTY; without even the implied warranty of              //
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               //
//  GNU General Public License for more details.                                //
//                                                                              //
//  You should have received a copy of the GNU General Public License           //
//  along with buola.  If not, see <http://www.gnu.org/licenses/>.              //
//                                                                              //
//////////////////////////////////////////////////////////////////////////////////

#ifndef _BUOLA_CV_CROWBUFFER_H_
#define _BUOLA_CV_CROWBUFFER_H_

namespace buola { namespace img {

template<typename tType>
class CRowBuffer
{
public:
    CRowBuffer(int pW,int pH,std::size_t pAlign=16)
        :   mW(pW)
        ,   mH(pH)
    {
        mStride=round_up_to_multiple(mW*sizeof(tType),pAlign);
        mData=alloc_array<uint8_t>(mStride*mH,pAlign);
    }

    CRowBuffer()
        :   mW(0)
        ,   mH(0)
        ,   mData(nullptr)
    {}

    ~CRowBuffer()
    {
        free(mData);
    }

    void Recreate(int pW,int pH,std::size_t pAlign=16)
    {
        free(mData);
        mW=pW;
        mH=pH;
        mStride=round_up_to_multiple(mW*sizeof(tType),pAlign);
        mData=alloc_array<uint8_t>(mStride*mH,pAlign);
    }

    int GetWidth()  {   return mW;  }
    int GetHeight() {   return mH;  }

    tType *operator[](int pRow) {   return (tType*)(mData+mStride*((pRow+mH)%mH));   }
    tType &operator()(int pRow,int pCol) {  return operator[](pRow)[pCol];  }
    const tType *operator[](int pRow) const {   return (const tType*)(mData+mStride*((pRow+mH)%mH));   }
    const tType &operator()(int pRow,int pCol) const {  return operator[](pRow)[pCol];  }

private:
    int mW,mH;
    int mStride;
    uint8_t *mData;
};

/*namespace img*/ } /*namespace buola*/ }

#endif /* CROWBUFFER_H_ */
